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To create a policy
1.
If you have not already done so, create a policy map. See "To create a policy map,"
above.
2.
On the Navigation Tree, click
E-Series
.
3.
Click
Policies
>
Policy Map
.
The table of the previously created policy maps appears.
4.
Double-click the name of the policy map in which you want to add a policy.
5.
In the menu, click
Create
.
6.
Reference the table above to configure the parameters.
7.
Click
Create
.
8.
Associate the policy map with an E-Series Ethernet port interface to use on ingress
traffic packets. See
Configuring an Ethernet or LAG Interface
(on page
33
).
For CLI:
add policy <policy index> to-map <p-map name> class-map <c-map name> [set-
pbit|rate-limit|max-burst-size]
Mapping Layer 3 Priority Values to P-Bits
The E-Series supports mapping Differentiated Services Code Point (DSCP) or IP
Precedence priority bit values, used for packet classification on DiffServ networks (defined in
RFC 2474 and RFC 2475), to IEEE 802.1p priority-bit values to classify traffic priority.
Traffic coming from the subscriber to xDSL Access ports
can reference the use of
layer 3 priority values from the service tag action associated with the service, and then
from the xDSL port associated interface, indicate whether to use the system-default
profile named "access" or a custom profile to map DSCP or IP precedence values to P-
bit values.
Guidelines:
Only one service per port can use DSCP-Bit mapping function.
Works with Add-Tag and Add-2-Tags tag actions.
Either DSCP or IP Precedence can be used for a service, not both.
Use the following provisioning sequence:
a.
Create DSCP to P-Bit map or Create IP Precedence to P-Bit Mask.
Creating and Modifying a DSCP Map for Ingress Traffic
(on page
98
)
Creating and Modifying an IP Precedence Map
(on page
100
)
b.
Assign DSCP to P-Bit map to xDSL port associated interface.
Configuring an xDSL Port Associated Interface
(on page
182
)
c.
Create tag action with an Outer P-Bit source of “Map a layer-3 Priority.”
Creating Service-Tag Actions
(on page
82
)
